CN114783752A - Manufacturing system and manufacturing method of annular Halbach magnetic array - Google Patents

Manufacturing system and manufacturing method of annular Halbach magnetic array Download PDF

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Publication number
CN114783752A
CN114783752A CN202210354159.8A CN202210354159A CN114783752A CN 114783752 A CN114783752 A CN 114783752A CN 202210354159 A CN202210354159 A CN 202210354159A CN 114783752 A CN114783752 A CN 114783752A
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magnet units
magnetizing
magnetic array
curing
manufacturing
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CN114783752B (en
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吴宗汉
赖敏
黄伟
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Shenzhen Haiteli Intelligent Equipment Co ltd
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Shenzhen Haiteli Intelligent Equipment Co ltd
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/0253Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing permanent magnets
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F13/00Apparatus or processes for magnetising or demagnetising
    • H01F13/003Methods and devices for magnetising permanent magnets

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)

Abstract

The application discloses manufacturing system and manufacturing method of annular halbach magnetic array, through setting up three concentric ring area (from outside to inside is magnetizing region, rubber coating region and concatenation curing zone in proper order) and from the outside many conveyer belts that extend of centre of circle outwards, equiangular arrangement set up, utilize the conveyer belt to accomplish the magnet unit that magnetizes of magnetizing region in proper order and convey to the rubber coating region, accomplish the glued magnet unit of rubber coating region and convey to concatenation curing zone, accomplish the concatenation curing finally and constitute annular halbach magnetic array, improved production efficiency, quality and benefit.

Description

Manufacturing system and manufacturing method of annular Halbach magnetic array
Technical Field
The application relates to the technical field of magnetization, in particular to a manufacturing system and a manufacturing method of an annular Halbach magnetic array.
Background
Halbach Array (or Halbach permanent magnet) is a magnet structure that is an engineered near-ideal structure that uses a particular arrangement of magnet elements to increase the field strength per unit direction with the goal of producing the strongest magnetic field with the least amount of magnets. The Halbach array is made of permanent magnet materials, permanent magnets in different magnetizing directions are arranged according to a certain rule, magnetic lines of force can be gathered on one side of the magnets, and the magnetic lines of force are weakened on the other side of the magnets, so that an ideal unilateral magnetic field is obtained. Halbach arrays are widely used in industrial fields with excellent magnetic field distribution characteristics. The straight line is the most basic form of halbach array formation. The circular halbach array can be regarded as a circular ring formed by assembling a linear halbach array end to end.
Disclosure of Invention
The technical problem that this application mainly solved is to provide manufacturing system and manufacturing method of annular halbach magnetic array.
In a first aspect, the present application provides a system for manufacturing an annular halbach magnetic array, the annular halbach magnetic array being composed of a plurality of magnet units, the system comprising: the device comprises three ring belt areas and a plurality of conveyor belts, wherein the three ring belt areas are arranged at the same center of a circle and are an magnetizing area, a gluing area and a splicing curing area from outside to inside in sequence; the conveyor belt is configured to convey the magnet units between the three endless belt zones, such that the magnet units arrive at the glue application zone after the magnetization of the magnetization zone is completed, arrive at the splicing curing zone after the glue application zone is completed, and complete the splicing curing in the splicing curing zone, constituting the annular halbach magnetic array.
In some optional embodiments, a magnetizing coil and a jig seat for fixing the magnet unit to be magnetized are arranged at the intersection of the magnetizing area and the conveyor belt.
In some optional embodiments, the jig base and the magnetizing coil are configured to be capable of rotating relative to each other by a preset angle.
In some alternative embodiments, the conveyor belt comprises clamps for clamping the magnet units to be conveyed from both the upper and lower sides.
In some optional embodiments, a glue dispensing device is disposed at the intersection of the glue application area and the conveyor belt, and the glue dispensing device is configured to apply glue to the two side surfaces of the magnet unit.
In some optional embodiments, the splicing and curing area is provided with a splicing and curing device, and the splicing and curing device is configured to splice the plurality of dispensed magnet units into a circular ring shape, clamp and fix the magnet units from the upper and lower surfaces, and perform a curing operation.
In some optional embodiments, the plurality of magnet units includes at least two groups, each group includes at least two magnet units with identical directions and sizes to be magnetized, and the manufacturing system is configured to magnetize the plurality of magnet units multiple times, and each time saturation magnetization of at least two magnet units in the same group is completed.
In a second aspect, the present application provides a method for manufacturing an annular halbach magnetic array, applied to the system for manufacturing an annular halbach magnetic array according to the first aspect, the method including: respectively placing a plurality of magnet units in a magnetizing area, and magnetizing according to a preset magnetizing direction; conveying the magnetized magnet units to a gluing area by using a conveying belt for gluing; and conveying the magnet units subjected to gluing to a splicing curing area by using a conveying belt for splicing and curing to form the annular Halbach magnetic array.
In some optional embodiments, the plurality of magnet units includes at least two groups, each group includes at least two magnet units with the same direction and size to be magnetized, and the magnetizing in the preset magnetizing direction includes: and magnetizing the plurality of magnet units for multiple times, and completing the saturated magnetization of at least two magnet units in the same group each time.
In some optional embodiments, the method further comprises: and carrying out secondary curing on the annular Halbach magnetic array.
According to the technical scheme, the embodiment of the application has the following advantages:
the manufacturing system and the manufacturing method of the annular Halbach magnetic array are provided, three concentric annular belt regions (a magnetizing region, a gluing region and a splicing curing region from outside to inside in sequence) and a plurality of conveyor belts which extend outwards from the center of circle and are arranged at equal angles are arranged, the conveyor belts are used for sequentially conveying the magnet units which are magnetized in the magnetizing region to the gluing region, the magnet units which are glued in the gluing region are conveyed to the splicing curing region, and finally the annular Halbach magnetic array is formed by splicing and curing. The manufacturing system can uniformly magnetize, glue and splice and solidify a plurality of magnet units, the annular Halbach magnetic array can be conveniently and quickly manufactured, and the production efficiency, the quality and the benefit are improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings used in the description of the embodiments and the prior art will be briefly described below, and it is obvious that the drawings in the description are only some embodiments of the present application and are not used to limit the present application.
FIG. 1 is a magnetic field line profile for a single magnet;
FIG. 2 is a magnetic field line profile for a linear Halbach array;
FIG. 3 is a schematic diagram of an annular Halbach magnetic array;
FIG. 4 is a schematic diagram of a system for manufacturing an annular Halbach magnetic array according to one embodiment of the present application;
FIG. 5 is a schematic representation of several circular Halbach magnetic arrays.
Detailed Description
In order to make the technical solutions of the present application better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terms "first," "second," "third," and the like in the description and claims of this application and in the above-described drawings are used for distinguishing between different objects and not for describing a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements but may alternatively include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The following are detailed by specific examples.
Referring to fig. 1, where (a) in fig. 1 shows a single magnet, the north (N) poles are all up, it can be seen that the strength of the magnetic field is at the bottom and top of the magnet. Fig. 1 (b) is a halbach array, with the magnetic field at the top of the magnet being high and the bottom being relatively weak. The strong side surface field strength of a halbach array magnet set at equivalent volume is about √ 2 times (i.e., 1.4 times) the field strength of a conventional single magnet.
Referring to fig. 2, fig. 2 is a magnetic line distribution diagram of an annular halbach magnetic array magnetic system formed by combining linear halbach magnetic arrays end to end. Illustratively, in a specific practice of a commonly used medium and small annular halbach magnetic array, the annular halbach magnetic array may be composed of 12 pieces of axial-tile-shaped magnet units, each of which is formed by equally dividing an annular magnet. And magnetizing the magnet units respectively according to the magnetic field directions shown in fig. 2 to obtain the required annular Halbach magnetic array which forms a magnetic field with a preset direction in the inner cavity.
Since the application of the annular halbach magnetic array magnet is wide, the manufacturing of the annular halbach magnetic array magnet is widely regarded, and of course, the manufacturing method thereof is also concerned.
Referring to fig. 3, there are, for example, 12 individual magnet units, respectively designated 101 to 112, constituting the annular halbach magnetic array 100. The manufacturing system of embodiments of the present application may be used, for example, to manufacture an annular halbach magnetic array 100 including, but not limited to, as shown in fig. 3.
Referring to fig. 4, fig. 4 is a schematic diagram of a manufacturing system 20 for an annular halbach magnetic array according to an embodiment of the present application. FIG. 4 is a view of a radial production system in which the X-Y plane is a horizontal plane and the Z-axis is perpendicular to the horizontal plane.
The manufacturing system 20 of the embodiment of the present application includes: the device comprises a plurality of conveyor belts 21 extending outwards from a center O and arranged at equal angles, and three ring belt zones 22 arranged concentrically with the center O as a circle center, wherein the three ring belt zones 22 sequentially comprise a magnetizing zone 22A, a gluing zone 22B and a splicing curing zone 22C from outside to inside. Taking the example of manufacturing the halbach magnetic array 100 as shown in fig. 3, 12 belts 21 may be provided. Here, the conveyor belt 21 is configured to convey the magnet units 10 between the three endless belt sections 22, so that the magnet units 10 reach the glue application section 22B after the completion of the magnetization in the magnetization section 22A, reach the splice curing section 22C after the completion of the glue application in the glue application section 22B, and complete the splice curing in the splice curing section 22C, constituting the annular halbach magnetic array 100.
Optionally, a magnetizing coil and a jig seat for fixing a magnet unit to be magnetized are installed at the joint of the magnetizing area 22A and each conveyor belt 21. And further, the jig base and the magnetizing coil are configured to be capable of rotating relative to each other by a preset angle. When the manufacturing operation is carried out, the magnet unit to be magnetized is placed in the jig seat in advance, and the next step is to magnetize by utilizing the magnetizing coil. Optionally, the relative position between the magnetizing coil and the jig seat can be fixed after rotating a certain angle, and the original position can be restored as required after the magnetizing is finished.
Optionally, the magnet unit is clamped and fixed by a clamp clamped by the upper and lower surfaces after being magnetized, and then is conveyed to the glue spreading area 22B through the conveyor belt 21.
Optionally, a glue dispensing device is disposed at the joint of the glue coating area 22B and each conveyor belt 21, and the glue dispensing device is configured to glue the surfaces of the two sides of the magnet unit. The magnet units with the glue applied to both sides are then conveyed to the splicing curing zone 22C by the conveyor belt 21.
Optionally, the splicing and curing area 22C is provided with splicing and curing equipment, and the splicing and curing equipment is configured to splice the plurality of magnet units subjected to dispensing into a circular ring shape, and perform a curing operation. Alternatively, to prevent deformation of the splice due to interaction of magnetic forces, the magnet units may be clamped from both the top and bottom sides to optimize curing. Optionally, in order to ensure the effect of adhesive bonding and curing, the annular halbach magnetic array can be taken out by a manipulator after splicing and curing are completed, and then the annular halbach magnetic array is sent into a drying tunnel and is kept at a certain temperature for secondary curing, so that better reinforcement is realized.
The magnetizing process is briefly described as follows:
generally, a step-up transformer is used during magnetizing, commercial power is rectified into direct current in a constant current mode, an energy storage capacitor is charged in a constant current mode, and the capacitor enters a voltage stabilization mode after the voltage of the capacitor reaches a set value; when the magnetizing is needed, the high-power switch discharges the magnetizing coil instantly, and as the resistance of the magnetizing coil is far smaller than the inductance, the total discharge current exceeds 10 kiloamperes, so that the energy of the energy storage capacitor is converted into the magnetic energy of the magnetizing coil to be magnetized to the maximum extent.
In the embodiment of the present application, when the annular halbach magnetic array is magnetized, it is a focus of the embodiment of the present application to use the symmetry of the annular halbach magnetic array. As shown in fig. 5(a), (b), and (c), the magnetizing direction of each magnet unit has obvious symmetry and universality.
As shown in fig. 5(a), the coil charging directions and magnitudes of the magnet units 1, 4, 7, and 10 are the same; the magnetizing directions and the sizes of the coils of the magnet units 2 and 8 are the same; the magnetizing directions and the magnetizing sizes of the coils of the magnet units 3 and 9 are the same; the magnetizing directions and the sizes of the coils of the magnet units 5 and 11 are the same; the magnetizing directions and the sizes of the coils of the magnet units 6 and 12 are the same; this can be fully applied in the magnetizing.
As shown in fig. 5(b), the coil charging directions and magnitudes of the magnet units 1, 5, and 9 are the same; the magnetizing directions and the sizes of the coils of the magnet units 2, 6 and 10 are the same; the magnetizing directions and the sizes of the coils of the magnet units 3, 7 and 11 are the same; the magnetizing directions and the sizes of the coils of the magnet units 4, 8 and 12 are the same; this can be fully applied in magnetization.
As shown in fig. 5(c), the coil charging directions and magnitudes of the magnet units 1 and 7 are the same; the magnetizing directions and the magnetizing sizes of the coils of the magnet units 2 and 8 are the same; the magnetizing directions and the magnetizing sizes of the coils of the magnet units 3 and 9 are the same; the magnetizing directions and the magnetizing sizes of the coils of the magnet units 4 and 10 are the same; the magnetizing directions and the sizes of the coils of the magnet units 5 and 11 are the same; the coil charging direction and the coil charging size of the magnet units 6 and 12 are the same. This can be fully applied in the magnetizing.
In the embodiment of the application, according to actual requirements, a magnetic diagram is drawn firstly by using a simulation technology, and then symmetry and universality of the magnetic diagram are determined.
Secondly, because the plurality of magnet units comprise at least two groups, each group comprises at least two magnet units with the same direction and size to be magnetized, the magnetizing step can adopt a grouping magnetizing method, namely, the plurality of magnet units of the magnetic array are magnetized for multiple times, and one group of magnet units (comprising at least two magnet units) is fully magnetized to be saturated each time, thereby gradually completing the magnetizing of the whole annular Halbach magnetic array.
Further alternatively, the magnetic pole position of the annular halbach magnetic array magnet has an important role for specific applications, and the positions of the N pole and the S pole can be marked in advance during magnetization according to a preset magnetic field.
To facilitate understanding and implementing the technical solution of the present application, the embodiments of the present application further provide a method for manufacturing a circular halbach magnetic array, which is applied to the manufacturing system of the circular halbach magnetic array as described above.
In an embodiment of the present application, a manufacturing method includes:
s1, respectively placing a plurality of magnet units at the joints of the plurality of conveyor belts and the magnetizing area, and magnetizing according to a preset magnetizing direction;
s2, conveying the magnetized magnet units to a gluing area by using a conveying belt for gluing;
and S3, conveying the glued magnet units to a splicing curing area by using a conveyor belt for splicing and curing to form the annular Halbach magnet array.
In some optional embodiments, the plurality of magnet units includes at least two groups, each group includes at least two magnet units with the same direction and size to be magnetized, and the step S1 of magnetizing according to the preset magnetizing direction includes: and magnetizing the plurality of magnet units for multiple times, and completing the saturated magnetization of at least two magnet units in the same group each time.
In some optional embodiments, the manufacturing method further comprises: and carrying out secondary curing on the annular Halbach magnetic array.
In the embodiment of the application, three concentric ring belt regions (which are a magnetizing region, a gluing region and a splicing curing region from outside to inside in sequence) and a plurality of conveyor belts which extend outwards from the center of circle and are arranged at equal angles are arranged, the conveyor belts are used for sequentially conveying magnet units which are magnetized in the magnetizing region to the gluing region, conveying the magnet units which are glued in the gluing region to the splicing curing region, and finally completing splicing and curing to form the annular halbach magnetic array. The manufacturing system can uniformly magnetize, dispense, splice and solidify a plurality of magnet units, conveniently and quickly manufacture the annular Halbach magnetic array, and improve the production efficiency, quality and benefit.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to the related descriptions of other embodiments.
It should be understood that the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same. The technical solutions described in the above embodiments can be modified or part of the technical features can be equivalently replaced by those skilled in the art; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the spirit and the scope of the technical solutions of the embodiments of the present application.

Claims (10)

1. A manufacturing system of an annular halbach magnetic array, the annular halbach magnetic array being composed of a plurality of magnet units, the manufacturing system comprising: the device comprises three ring belt areas and a plurality of conveyor belts, wherein the three ring belt areas are concentrically arranged, the plurality of conveyor belts extend outwards from the center of a circle and are arranged at equal angles, and the three ring belt areas sequentially comprise a magnetizing area, a gluing area and a splicing curing area from outside to inside; the conveyor belt is configured to convey the magnet units between the three belt zones, so that the magnet units reach the glue coating zone after the magnetization of the magnetization zone is completed, reach the splicing curing zone after the glue coating zone is completed, and complete the splicing curing in the splicing curing zone to form the annular halbach magnetic array.
2. The system for manufacturing an annular halbach magnetic array according to claim 1, wherein a magnetizing coil and a jig base for fixing the magnet unit to be magnetized are provided at a junction of the magnetizing region and the conveyor belt.
3. The system of claim 2, wherein the jig base and the magnetizing coil are configured to be rotatable relative to each other by a predetermined angle.
4. The system for manufacturing an annular halbach magnetic array as claimed in claim 1, wherein the conveyor comprises grippers for gripping the magnet units to be conveyed from both the upper and lower sides.
5. The system for manufacturing an annular halbach magnetic array according to claim 1, wherein a glue dispensing device is provided at an intersection of the glue application area and the conveyor belt, the glue dispensing device being configured to apply glue to both side surfaces of the magnet unit.
6. The system for manufacturing an annular halbach magnetic array according to claim 1, wherein the splicing and curing area is provided with a splicing and curing device configured to splice the plurality of dispensed magnet units into a circular ring shape, clamp and fix the magnet units from the upper and lower surfaces, and perform a curing operation.
7. The system of claim 2, wherein the plurality of magnet units comprises at least two groups, each group comprising at least two magnet units having the same direction and size to be magnetized, and the system is configured to magnetize the plurality of magnet units a plurality of times, each time completing a saturation magnetization of at least two magnet units in the same group.
8. A method for manufacturing an annular halbach magnetic array, which is applied to the system for manufacturing an annular halbach magnetic array according to claim 1, the method comprising:
respectively placing a plurality of magnet units in a magnetizing area, and magnetizing according to a preset magnetizing direction;
conveying the magnetized magnet units to a gluing area by using a conveying belt for gluing;
and conveying the magnet units subjected to gluing to a splicing curing area by using a conveying belt for splicing and curing to form an annular Halbach magnetic array.
9. The method for manufacturing an annular halbach magnetic array according to claim 8, wherein the plurality of magnet units includes at least two groups, each group includes at least two magnet units with the same direction and size to be magnetized, and the magnetizing in the preset magnetizing direction includes: and magnetizing the plurality of magnet units for multiple times, wherein the saturation magnetizing of at least two magnet units in the same group is completed each time.
10. The method of manufacturing an annular halbach magnetic array of claim 8, further comprising: and carrying out secondary curing on the annular Halbach magnetic array.
CN202210354159.8A 2022-04-06 2022-04-06 Manufacturing system and manufacturing method of annular halbach magnetic array Active CN114783752B (en)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105405635A (en) * 2015-12-18 2016-03-16 包头市英思特稀磁新材料有限公司 Automatic Halbach assembly binding machine
CN205645427U (en) * 2016-04-21 2016-10-12 王煊 Magnetic bodies spare that adopts bake array structure of haier and make up with ironbar
CN206575563U (en) * 2017-02-11 2017-10-20 中山市天键通讯技术有限公司 Concentric magnetic circuit component automatic assembly equipment
CN107342161A (en) * 2017-06-30 2017-11-10 苏州秀特电子有限公司 A kind of preparation method of halbach magnets, halbach magnets and electronic equipment
CN208970335U (en) * 2018-08-21 2019-06-11 珠海市鑫茂源电子有限公司 A kind of automatic assembling magnetic core arrangement
CN209781391U (en) * 2018-12-23 2019-12-13 天津市顺象科技发展有限公司 High-frequency magnetic circuit automated production equipment
JP2020198698A (en) * 2019-05-31 2020-12-10 パナソニックIpマネジメント株式会社 Mounting device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105405635A (en) * 2015-12-18 2016-03-16 包头市英思特稀磁新材料有限公司 Automatic Halbach assembly binding machine
CN205645427U (en) * 2016-04-21 2016-10-12 王煊 Magnetic bodies spare that adopts bake array structure of haier and make up with ironbar
CN206575563U (en) * 2017-02-11 2017-10-20 中山市天键通讯技术有限公司 Concentric magnetic circuit component automatic assembly equipment
CN107342161A (en) * 2017-06-30 2017-11-10 苏州秀特电子有限公司 A kind of preparation method of halbach magnets, halbach magnets and electronic equipment
CN208970335U (en) * 2018-08-21 2019-06-11 珠海市鑫茂源电子有限公司 A kind of automatic assembling magnetic core arrangement
CN209781391U (en) * 2018-12-23 2019-12-13 天津市顺象科技发展有限公司 High-frequency magnetic circuit automated production equipment
JP2020198698A (en) * 2019-05-31 2020-12-10 パナソニックIpマネジメント株式会社 Mounting device

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